Sadly you will need to live the rest lf your life with it, it's just the unfortunate reality to the situation. There's a small chance you'll just grow out of it but the closer you get to your 20's the less likely it is. There are no cures or ways to overcome your stutter; it's a neurological disability. Honestly I think you should try to live with it rather than against it. It's alot easier to realize that you are stuck with it weither you like it or not and I know that sounds bad but it's just true.